the truth is that highly skilled immigrants with degrees in science, technology, engineering and math, aka the stem jobs, they create jobs for other americans. according to one study, from 2000 to 2007, for every 100 foreign-born workers who earned an advanced stem degree here in the united states and went on to work in those fields, that created an additional 262 jobs for native-born americans. but instead of embracing this, the u.s. immigration policy sends those highly skilled immigrants, many of them, educated in the best american colleges and universities back home to their country of origin so they can create jobs there, competing with the u.s. in the global economy. it's called the reverse brain drain. joining me is the director of research at duke university. he's also the author of "the immigrant exodus, why america is losing the global race to capture entrepreneur talent." your research found that from 1995 to 2005, immigrants founded more than a quarter of all tech and engineering start-ups in the united states and more than 52% of those in silicon valley. you have just upd